RU2262616C1 - Manifold unit of internal combustion engine - Google Patents

Abstract

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention is designed for internal combustion engines with forced ignition. Proposed manifold unit has common flange for fastening to engine whose exhaust branch pipes are connected to flange for connection with exhaust pipe, and suction branch pipes are connected with intake chamber furnished with flange for connection with carburetor. One of walls of intake chamber is made integral with walls of at least part of exhaust branch pipes, and on inner side of this wall, in intake chamber, heat sink ribs are found on edges of which guide deflector rests, being secured on inner edge of carburetor flange.

EFFECT: reduced cost of manifold unit.

4 dwg

Description

The invention relates to engine and is intended for internal combustion engines with positive ignition.

Known ICE [1] with exhaust and suction manifolds, which are interconnected by a heat exchanger-recuperator having a suction and exhaust compartments. The air-fuel mixture, passing from the carburetor to the suction pipes through the suction compartment of the heat exchanger, is heated in it due to the hot exhaust gases passing through the exhaust compartment of the heat exchanger.

The disadvantage of this device is the complexity and bulkiness of the heat exchanger.

The closest prototype for the present invention is a collector-steam generator [2], containing the inner and outer shells. Moreover, the outer casing is connected to the exhaust pipes of the collector and the exhaust pipe, and the inner casing is connected to the suction pipes and to the carburetor. Exhaust gases passing through the outer casing wash the inner casing and heat the air-fuel mixture flowing in it. In this case, drops of gasoline partially evaporate and the air-fuel mixture is homogenized.

The disadvantage of this device is its complexity and low manufacturability. This is due to the fact that each of the buildings is connected with four branch pipes independent of each other.

The problem that is being solved in the present invention is to simplify the design of the collector assembly and increase its manufacturability.

The result of solving this problem is to reduce the cost of the reservoir.

This result is achieved in that the ICE manifold assembly has a common flange for fastening to the engine, the exhaust pipes of which are connected to the flange for connection to the exhaust pipe, and the suction pipes are connected to a receiving chamber equipped with a flange for connecting to the carburetor. In this case, one of the walls of the receiving chamber is made integral with the walls of at least part of the exhaust pipes, and on the inner side of this wall in the receiving chamber there are fins of a heat radiator, the edges of which are guided by a deflector mounted on the inner edge of the carburetor flange.

The invention is shown in the drawings.

- figure 1 shows the collector node in a top view;

- figure 2 is a front view of the node from the side of the common flange;

- figure 3 is a transverse section of the receiving chamber;

- figure 4 is a section of the receiving chamber in plan.

The collector assembly contains a common flange 1 for mounting the assembly on the engine. The exhaust pipes 2 and the suction pipes 3 extend from the flange 1. The suction pipes 3 are connected to a receiving chamber 4 having a flange 5 for connection with a carburetor. The exhaust pipes 2 are attached to the flange 6 for connection with the exhaust pipe. The bottom wall 7 of the receiving chamber is made integral with the walls of the two central exhaust pipes, which are located in this place under the receiving chamber. On the inner side of the wall 7 in the receiving chamber 4 there are fins 8 of a heat radiator, on the upper edges of which there is a guide deflector 9 mounted on the inner edge of the flange 5 of the carburetor.

The collector node, designed for the homogenization of the air-fuel mixture, operates as follows. The exhaust gases from the running engine flow through the exhaust pipes 2 to the exhaust pipe flange 6. In this case, the two central exhaust pipes heat the lower wall 7 of the intake chamber 4 together with the fins 8. The air-fuel mixture from the carburetor enters through the channel formed by the guide deflector 9 into the space between the fins 8 of the heat sink and heats up. In this case, intense evaporation of droplets of gasoline occurs, which leads to the transformation of a finely divided aerosol mixture into a steam-air homogenized mixture.

The proposed collector assembly, performing its main function as a steam generator and a homogenizer of the air-fuel mixture, is so simple in design that when using casting technology it will not differ in cost from the serial collector of VAZ engines, which is taken as the basis in the present invention.

Sources of information:

1. Auto USSR No. 1815398, class 5 F 02 M 31/08, 1993

2. RF patent No. 2118692, cl. 6 F 02 M 31/08, 1998 (prototype).

Claims (1)

An ICE manifold assembly having a common flange for mounting to an engine, the exhaust pipes of which are connected to a flange for connecting to an exhaust pipe, and the suction pipes are connected to a receiving chamber provided with a flange for connecting to a carburetor, characterized in that one of the walls of the receiving chamber is integral with walls of at least part of the exhaust pipes, and on the inner side of this wall in the receiving chamber there are fins of a heat radiator, the edges of which are guided by a deflector fixed to morning edge of the flange of the carburettor.

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